Use pre-washed, bite-sized potatoes to speed up prep and cook time., Heat milk gently over medium heat and stir often to avoid curdling; temper milk with hot broth if worried about texture., If soup is too thin, simmer longer or whisk in a cornstarch slurry (1 tbsp cornstarch + 1 tbsp cold water) gently to thicken., For smooth texture, use an immersion blender directly in the pot or work in small batches with a regular blender after cooling slightly., Season soup at the end to avoid over-salting, as potatoes soak up salt., Soup keeps 3-4 days refrigerated in an airtight container; freeze for several months but texture may change slightly., Reheat gently and add broth or milk as needed to adjust consistency., Add richness by stirring in sour cream or half-and-half just before serving., Instant Pot: cook potatoes and broth on high pressure for 4 mins with quick release; sauté onions and milk to finish., Slow cooker: sauté onions and garlic first; add to potatoes and broth; thicken soup with roux at the end to avoid watery soup., Protein add-ins include bacon, ham, shredded chicken, or cooked ground beef., For creamier soup, substitute half milk with heavy cream or use half-and-half., Spice with red pepper flakes or cayenne pepper for heat., Use starchy potatoes like Yukon Gold or russets for best creamy texture; baby reds work but won’t break down as smoothly.